How is the aluminum shell furnace lining using the furnace building machine

The video shows the The aluminum shell furnace is lined with a furnace building machine. 1. Spread the asbestos cloth. 2. Knotting the bottom of the furnace, usually the height of the first layer of the crucible bottom is about 80-100mm, and each subsequent layer is 40-50mm, and the final layer should be 20-30mm higher than the bottom of the furnace. , Do not pile up, so as not to separate the size particles of the material. To avoid delamination, use a cutting fork to break up and smooth the freshly knotted surface layer before each addition. Knotting should be hammered vertically, not swinging from side to side. At the same time, pay attention not to damage the heat insulation layer when knotting. When knotting, it should be light first and then heavy. 3. The order of knotting is the edge first and then the center, and knots are tied row by row in order. Shovel off the excess after hitting with a flat hammer, and keep the bottom of the furnace level. 4. Put the crucible membrane, which is concen